This is a text about church from Ernest E. Ryden. You can find the lyrics in the page scans at Hymnary. There is a verse about Eucharist that is omitted in CWB II, maybe it was too Lutheran. The phrase “inly giv’n” is quite the archaism.
Hymnary sets it to everything else, but CWB II chooses EISENACH, which is appropriately stirring.